Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Cameron Holden's Photo Gallery

Southern quarry

04676250017055873799921.jpg
Unnamed schist quarries, Potomac, Montgomery County, Maryland, USA

Copyright: © Cameron Holden      Photo ID: 1209215     Uploaded by: Cameron Holden   Upload date: 2022-04-08   View Count: 16    Status: Public galleries    Type: Photo - 2048×1536 (3.1 Mpix)

VRV-8FASchorl NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) , Quartz SiO2

04559330017057802527372.jpg
Bethesda, Montgomery County, Maryland, USA

Largest Crystal Size: 1 mm

Tiny schorl crystals from fleming park.
Copyright: © Cameron Holden      Photo ID: 1209133     Uploaded by: Cameron Holden   Upload date: 2022-04-07   View Count: 43    Status: Public galleries    Type: Photo - 2628×2054 (5.4 Mpix)

M5Q-EQ4Baryte BaSO4

00230360017057802694098.jpg
Point Vicente, Rancho Palos Verdes, Los Angeles County, California, USA

Largest Crystal Size: 3 cm

Baryte crystals on sandstone.
Copyright: © Cameron Holden      Photo ID: 1206028     Uploaded by: Cameron Holden   Upload date: 2022-03-24   View Count: 41    Status: Public galleries    Type: Photo - 2048×1536 (3.1 Mpix)

The West Guilford and Waltersville Quarry

02761170017057802706640.jpg
Guilford & Waltersville Quarries, Baltimore County, Maryland, USA

Copyright: © Cameron Holden      Photo ID: 1202510     Uploaded by: Cameron Holden   Upload date: 2022-03-09   View Count: 22    Status: Public galleries    Type: Photo - 2048×1536 (3.1 Mpix)

The east Guilford and Waltersville quarry

05105720017057802727516.jpg
Guilford & Waltersville Quarries, Baltimore County, Maryland, USA

The narrow, eastern quarry, now filled with trash.
Copyright: © Cameron Holden      Photo ID: 1202096     Uploaded by: Cameron Holden   Upload date: 2022-03-07   View Count: 41    Status: Public galleries    Type: Photo - 2048×1536 (3.1 Mpix)

UD6-CE2Biotite K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2

05861740017057802752900.jpg
Guilford & Waltersville Quarries, Baltimore County, Maryland, USA

Dimensions: 50 mm x 40 mm x 2 mm

A large, delicate biotite mica book from the tall dumps of the east quarry.
Copyright: © Cameron Holden      Photo ID: 1202094     Uploaded by: Cameron Holden   Upload date: 2022-03-07   View Count: 33    Status: Public galleries    Type: Photo - 2810×2440 (6.9 Mpix)

HR6-FDDGneiss

06553020017056721755125.jpg
Unnamed schist quarry, Potomac, Montgomery County, Maryland, USA

Dimensions: 13 cm x 3 cm x 2 cm

A good specimen of gneiss showing the darker minerals contrasting the lighter ones. Specimen is from the abandoned gneiss quarry north of river road on the west side of cabin john creek.
Copyright: © Cameron Holden      Photo ID: 1200096     Uploaded by: Cameron Holden   Upload date: 2022-02-26   View Count: 49    Status: Public galleries    Type: Photo - 3264×2448 (8.0 Mpix)

MAY-U72Pyrite FeS2 , Limonite, Quartz SiO2 , Schorl NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)

09589680017056157599629.jpg
Ayrlawn park, Bethesda, Montgomery County, Maryland, USA

Dimensions: 10 cm x 10 cm x 6 cm

Pyrite surrounded by limonite after pyrite, along with limonite, quartz, and schorl. This is a typical specimen from this locality, except for pyrite which is rare at this site.
Copyright: © Cameron Holden      Photo ID: 1200089     Uploaded by: Cameron Holden   Upload date: 2022-02-26   View Count: 49    Status: Public galleries    Type: Photo - 2048×1536 (3.1 Mpix)

JW4-ECFIlmenite Fe2+TiO3 , Quartz SiO2

00017400017055938091360.jpg
Cabin John Creek, Montgomery County, Maryland, USA

Dimensions: 25 cm x 30 cm x 15 cm

ilmenite in quartz
Copyright: © Cameron Holden      Photo ID: 1196259     Uploaded by: Cameron Holden   Upload date: 2022-02-06   View Count: 70    Status: Public galleries    Type: Photo - 2457×1995 (4.9 Mpix)

CAK-VEXGneiss

01875030017056721757288.jpg
Unnamed schist quarry, Potomac, Montgomery County, Maryland, USA

Dimensions: 100 cm x 85 cm x 30 cm

Quartz-mica gneiss from the quarry.
Copyright: © Cameron Holden      Photo ID: 1196252     Uploaded by: Cameron Holden   Upload date: 2022-02-06   View Count: 46    Status: Public galleries    Type: Photo - 2509×2158 (5.4 Mpix)
Page 1 of 8 (1 to 10 of 71 total)
Next Page
1 2 3 4 5 6 7 8
 
and/or  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: May 9, 2024 03:36:20
Go to top of page